removing image tag from memory

Posted by Chapsterj on Stack Overflow See other posts from Stack Overflow or by Chapsterj
Published on 2012-10-15T22:14:45Z Indexed on 2012/10/15 23:02 UTC
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I have seen some code to check if a background image on a div is loaded. What they are doing is adding a img tag to memory but storing it in a variable and using that to see if the image is loaded with the load event. My question is does the $img tag stay in memory and how would I be able to remove that tag when the load event has been called.

  var $div = $('div'),
  bg = $div.css('background-image');
  if (bg) {
    var src = bg.replace(/(^url\()|(\)$|[\"\'])/g, ''),
      $img = $('<img>').attr('src', src).on('load', function() {
        // do something, maybe:
        $div.fadeIn();
      });
  }
});

I got this code above from this post

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